Remedies For Swelling Between Knuckles My Dog Gets What Appears To Be Boils Between His Toes, How Can I Cure This?

My dog gets what appears to be boils between his toes, how can I cure this? - remedies for swelling between knuckles

I have a bull terrier, and about every three to four weeks is a shot of red and swollen for one or several of his fingers. It should be in pain as he licks all the time and if you are lagging. We have tried everything, creams and oral antibiotics. The vet says it is a kind of virus and can not find anything by using a blood test. Are there any home remedy or treatment for this?